Tool holder



FIG. 1 is a perspective view of a tool holder showing my new design;

FIG. 2 is a front elevational view thereof, the rear view being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a top plan view thereof, wherein the broken portions of the view are for illustrative purposes only and form no part of the claimed design;

FIG. 8 is a top plan view thereof, wherein the broken portions of the view are for illustrative purposes only and form no part of the claimed design; and,

FIG. 9 is a top plan view thereof, wherein the broken portions of the view are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a tool holder, as shown and described. 